Method op tbanstebbinq dyestuits to fabrics and poeotjs sttepaces



Reissued Au 30, 1932 5' UNITED STATES PATENT OFFICE HELENA S. SADTLER,or ERDENHEIM, PENNSYLVANIA METHOD OF TBANSFERRING DYESTUFFS T0 FABRICSAND IIE'OROUS SURFACES Ho Drawing. Original No. 1,651,470, datedDecember 6, 1927, Serial No. 165,755, filed February 3, 1927.

' Application for reissue fi1ed December 31, 192B. Serial No. 329,658.

This is a continuation in part of my application Serial No. 23,717,filed April 16, 1925,

for method of transferring dyestufis to V fabrics.

My invention relates to a method of transferring dye stuffs tofabrics-soft papersclay or biscuit ware, etc. in fact any material thatwill absorb water or solvent in which the dye'stufi's can be absorbed,wherein only porlo tions of the fabric are to be dyed or decorated thusproducing letterings, designs or pictures. The dyed places can be deeplydyed or only tinted, can be fugitive, fast or indelibly dyed or stained,as desired. For some purposes such as embroidery designs a fugitivemarking is desirable. For imitation of block printing, permanentmarkings and decorative designs fastness of the dye or coloring isdesired.

My method relates to the use of water soluble dyes by which they may beprinted on paper in relief effects and then transferred by contact withthe wetted cloth or substance. In a particular way which I will describeso that all the stages of preparing the ink, printing with the same andtransferring to a wetted surface may be carried on in a commercial Wayor by people with little or no special skill or training.

In recent years the direct printing of fabrics has been developed owingto improvements in dyesso that designs may be printed and then onlysteamed to render the colors fast. My invention includes a method ofaccomplishing the same results but by a difl'erent procedure. I am ableto print the desired colors first on a preferably, but not necessarily,nonabsorbent paper, which has the property of readily releasing the inkdeposit, and by then dusting the printed surface with a fine powder, asgum tragacanth, etc., or as disclosed in my above application, karayagum, which gums are distinctly colloidal with cold water and only poorlyor feebly soluble in cold water, and which have an advantage over gumsthat are readily soluble in cold water in that they more eflicientlyprevent bleeding or running of the color beyond the margins of thedesign during the transfer process. The

powdered gums referred to permitv the use of a non-drying ink on thepress and the dust prevents oifsetting and produces a dry surfacepattern until used in contact with the wetted surface. I find that thedesigns can then be easily transferred by simply wetting the fabric ormaterial to be marked and then placing the paper transfer with printedside against the wetted surface and allow the paper to remain in closecontact '60 with the wetted fabric or material for a minute or so andthe entire coloring will penetrate into the wetted substance. A clearexact reproduction of markings or designs that were on the paper are nowin the fabric, etc. The marking is now allowed to dry. In'markingfabrics when it is desired that the color or colors selected for thispurpose be fast, it is then only necessary to place a wet cloth over thetransferred marking and apply a hot-iron to steam the same in otherwords, the selected direct colors used only require steaming to renderthem fast. Colors so treated will also resist dry cleaning. Thecarbo-hydrate powder such as 'tragacanth, etc. aid in the manufacturingby eliminating the offsetting and allowing sheets to be stacked and italso-prevents creeping when the design is transferred to the wettedsurface, thus permitting a complete transfer of the design from thepaper without the application of-heat or steaming.

Specifically I use what is known in the trade as paste for printingtextiles or an ink with a glycerine base in which the water soluble dyesareincorporated and I generally employ a substantive dye or one that iscapable of dyeing'any one or all of the most used material, such ascotton, wool or silk. Mordants such as tannin or metallic salts may beincorporated into this ink. I use preferably, but not necessarily, anonabsorbent paper, such as so called grease proof parchment paper, thatis, a releas ng paper, which has the property of releasing all, orpractically all, of the mix deposit, using a generous supply of theabove mentioned ink or textile paste. This ink surface is then dustedwith a powder made from a muscilaginous gum, such as gum tragaby it.

canth, gum karay, etc., as above noted. The printed surface may haveapplied to it more than one ink or paste of different shades or colors,but of a kind I specify in this way, multior varied colored effects maybe produced. I find that muscilaginous gum tends to fix the color to thespot where it is applied in character or design and it does not run whenapplied to the wetted material.

When the printing isperformed on plate presses I use glycerine to. keepthe ink from drying on the press and may also use some colloidal jelljointly with it, but if cylinder presses are used, .some form. ofthickener such as a carbohydrate that forms a colloidal jell with Waterwhich may be of gum or glycerine is not necessary, but the impressionsare dusted as they come off the rollers with the mucilaginous gumpowder. As these transfers may be used for either cot- 7 ofwatersoiluble ink and a mucilaginous gum swelled by but insoluble inlying said marking.

8. A transfer sheet comprising a base having atr'ansferable markingthereon formed of a soluble ink and gum tragacanth.

9. A transfer sheetcomprising a base. having a transferable markingthereon formed of water soluble ink in glycerin solution and gumtragacanth. HELENAQSU SADTLER.

cold water overton, Wool, rayon. or. silk, I generally use a I so-calledunion dyeywhich will dye any of these fabrics and I may also use someform of mordant such as tannin and metallicsalt, potassium antimonytartate, etc.

vWhen printed on cylinder and flat bed presses suflicient colloidal jellcan be added to the printing medium or paste so that dusting is notrequired, but I prefer the dusting method because it gives a dry surfaceto the printing immediately and it causes thegdye to more readilypenetrate the wetted surface in being transferred to the differentmaterials or substances. V

I claim 1. A transfer sheet comprising a. base having printed thereon adesign in water soluble. i I

ink and a coating of mucilaginous powder swelled by but not soluble incold Water and adhering to-the design and partially absorbed 2. Atransfer sheet comprising abase having printed thereon a design in watersoluble ink and a coating of powdered gum tra'gacanth adhering to thedesign and partially absorbed by it.

3. A transfer sheet comprising a base havink and a coating ofmucilaginous powder swelled by but not soluble incold water andadheringto said design. a

ing printed thereon a design in water soluble 5'. A transfer sheetcomprising a paper base having printed thereon a design in water solubleink and a coating of mucilaginous powder swelled by butnot solubleincold water

